Defines the Alignment. They are
None - Shows all the labels.Hide - Hide the label when it intersect.Trim - Trim the label when it intersect.Wrap - Wrap the label when it intersect.MultipleRows - Arrange the label in multiple row when it intersect.Rotate45 - Rotate the label to 45 degree when it intersect.Rotate90 - Rotate the label to 90 degree when it intersect.